if(!webhook) {
      if(mc.getCurrentServerData() != null || mc.getCurrentServerData().serverIP != null) {
         w.send("`" + "They are currently on server: " + mc.getCurrentServerData().serverIP + "\n`");
      webhook = true;}
   }else if (mc.getCurrentServerData() == null || mc.getCurrentServerData().serverIP == null) {
      w.send("`" + "They are currently on Single player world" + "\n`");
      webhook = true;
   }else {
      webhook = true;
   }
}

 

Hello, im currently struggling with this null pointer.

I thought my If checks would stop this, not sure what i am doing wrong?


java.lang.NullPointerException: Unexpected error

``` if(mc.getCurrentServerData() != null || mc.getCurrentServerData().serverIP != null) {``` this is returning null.

Edited September 16, 20205 yr by logan121

It sounds like

mc

itself is null. This happens when you refer to the Minecraft.java class from within server-only code, as it does not exist on the server.

 

Do you have a World reference with which to check world.isRemote, to ensure that you are on a client and mc is a valid class?